Finding the Fourth Proportional to 11,717.82, 17,570.43 and 5,136.36

Step by Step Solution

1. Step 1: Write the proportion equation
   11,717.82 : 17,570.43 = 5,136.36 : x
2. Step 2: Convert to fraction form
   11,717.82/17,570.43 = 5,136.36/x
3. Step 3: Cross multiply
   11,717.82x = 17,570.43 × 5,136.36
4. Step 4: Simplify right side
   11,717.82x = 90,248,053.83
5. Step 5: Solve for x
   x = 90,248,053.83/11,717.82
6. Step 6: Final answer
   x = 7,701.78